Salem, Oregon

And so it begins, around 9 a.m. PST. Sun spots are visible before a solar eclipse in the path of totality.

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Solar Eclipse

This multiple exposure photograph captures the phases of a partial solar eclipse over the Gateway Arch in St. Louis, Missouri, just a few miles outside of the path of totality.

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Mitchell, Oregon

Although this image from Big Summit Prairie ranch in Oregon's Ochoco National Forest near Mitchell, Oregon, might look Photoshopped, it simply captures the"diamond ring effect" as the moon passes in front of the sun.

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Mitchell, Oregon

Crowds gather to watch the start of the solar eclipse and raise their hands in prayer in a viewing event led by Native American elders at Big Summit Prairie ranch in Oregon's Ochoco National Forest.

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Salem, Oregon

The moon begins to take a bite out of the sun.

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Redmond, Oregon

The moon covers the sun during a total eclipse in a photo taken near Redmond, Oregon.

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San Francisco, California

Although outside the path of totality, a number of photographers and observers in San Francisco, California, look through the clouds to see Monday's total solar eclipse.

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Salem, Oregon

Pac-Man in the sky — the moon progresses.

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Mitchell, Oregon

The sun's corona is the only visible part of the sun in this image, taken outside Mitchell, Oregon. The corona is the aura of plasma that appears to ring the moon during a total eclipse, which you normally wouldn't observe, although it can also be seen with a coronagraph under normal circumstances.

Meg Reinhardt

New York, New York

Although clouds partially obscured eclipse in New York City, office workers (including Condé Nast Traveler editors) filled the sidewalks and parks to look up to the sky on Monday afternoon.

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Salem, Oregon.

A crescent sun appears. The view from Salem is within the path of totality, the point of greatest intensity.

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Redmond, Oregon

The moon silhouettes the sun near Redmond, Oregon, inside Monday's path of totality.

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Hopkinsville, Kentucky

Mike Newchurch, left, professor of atmospheric chemistry at the University of Alabama in Huntsville, and graduate student Paula Tucker prepare a weather balloon before releasing it to perform research during the solar eclipse on the Orchard Dale historical farm near Hopkinsville, Kentucky.

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Indianapolis, Indiana

Although clouds partially obscured the partial eclipse in Indianapolis, observers looking over the roof of the Scottish Rite Cathedral managed to catch a crescent sun.

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Redmond, Oregon

This multiple-exposure photo shows the path of the sun during a total solar eclipse, with each image taken approximately 20 minutes apart.

Meg Reinhardt

New York, New York

The moon never fully eclipsed the sun for New Yorkers, but Traveler editors were still treated to this view and others during the prime eclipse hours on Monday.